Collapsible head rest



FIG. 1 is a perspective view of a collapsible head rest showing my design;

FIG. 2 is a bottom view of the device illustrated in FIG. 1;

FIG. 3 is a top view of the device illustrated in FIG. 1;

FIG. 4 is a front view of the device illustrated in FIG. 1;

FIG. 5 is a left side elevational view illustrating the device in FIG. 1;

FIG. 6 is a back view of the device illustrated in FIG. 1;

FIG. 7 is a right side elevational view illustrating the device in FIG. 1;

FIG. 8 is a perspective view showing an alternative embodiment of my invention;

FIG. 9 is a bottom view of the alternative embodiment of my invention;

FIG. 10 is a top view of the alternative embodiment of my invention;

FIG. 11 is a front view of the alternative embodiment of my invention;

FIG. 12 is a left side elevational view of the alternative embodiment of my invention;

FIG. 13 is a back view of the alternative embodiment of my invention; and

FIG. 14 is a right side elevational view of the alternative embodiment of my invention. 

The ornamental design for a collapsible head rest, as shown and described. 